/*
 * Copyright ConsenSys AG.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.ethereum.mainnet.precompiles;

import org.hyperledger.besu.crypto.Hash;
import org.hyperledger.besu.ethereum.core.Gas;
import org.hyperledger.besu.ethereum.mainnet.AbstractPrecompiledContract;
import org.hyperledger.besu.ethereum.vm.GasCalculator;
import org.hyperledger.besu.ethereum.vm.MessageFrame;

import org.apache.tuweni.bytes.Bytes;
import org.apache.tuweni.bytes.Bytes32;

public class RIPEMD160PrecompiledContract extends AbstractPrecompiledContract {

  public RIPEMD160PrecompiledContract(final GasCalculator gasCalculator) {
    super("RIPEMD160", gasCalculator);
  }

  @Override
  public Gas gasRequirement(final Bytes input) {
    return gasCalculator().ripemd160PrecompiledContractGasCost(input);
  }

  @Override
  public Bytes compute(final Bytes input, final MessageFrame messageFrame) {
    return Bytes32.leftPad(Hash.ripemd160(input));
  }
}
